We have recently uncovered that coffee was not working as intended, probably since 1.7.0d. Right now, the coffee buff only lasts for 2s instead of 9s, rendering it almost useless. The next game patch will fix this issue.

The leaderboards WILL NOT be affected by the fix. If anything, it will make most runs faster. I highly suggest you don't submit runs until the fix (except Pipe Only), since your runs will most likely be faster after the patch. I'll make another post once the fix is out.